package MyThreadPool1;


import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.BlockingQueue;

class MyThreadPool {
    private BlockingQueue<Runnable> queue = new ArrayBlockingQueue<>(1000);

    // 此处 n 表示创建几个线程.
    public MyThreadPool(int n) {
        // 先创建出 n 个线程
        for (int i = 0; i < n; i++) {
            Thread t = new Thread(() -> {
                // 循环的从队列中取任务.
                while (true) {
                    try {
                        Runnable runnable = queue.take();
                        runnable.run();
                    } catch (InterruptedException e) {
                        throw new RuntimeException(e);
                    }
                }
            });
            t.start();
        }
    }

    // 添加任务
    public void submit(Runnable runnable) {
        try {
            queue.put(runnable);
        } catch (InterruptedException e) {
            throw new RuntimeException(e);
        }
    }
}